If a crane is set up out of level with a short boom at a high boom angle and swings to the high side, what may happen?

When a crane is set up out of level, particularly with a short boom at a high boom angle, and then swings to the high side, backward stability decreases. This situation arises because the center of gravity of the crane, along with the load being lifted, shifts in a way that can lead to a tipping hazard.

As the crane swings up and over the high side, the distribution of weight can cause the center of gravity to move past the rear axle or support point, which reduces the effective stability of the crane. When the boom is extended at a high angle and the load moves, the moment created by the load may cause the rear of the crane to become less stable, increasing the risk of a tip-over in that direction.

Proper setup and leveling of cranes are essential to maintain stability, especially in scenarios involving large boom angles and load movements. Understanding this dynamic allows operators to take necessary precautions and avoid dangerous situations related to equipment instability.